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Table 1 Example of Subject Stratification for SSS, Rows Indicate the Treatment Arms, Columns Indicate Strata and Cell Values Indicate the Number of Participant

From: A comparison of missing data methods for hypothesis tests of the treatment effect in substance abuse clinical trials: a Monte-Carlo simulation study

  Strata
Treatment 1 2 4 5 8
Placebo 10 7 15 14 38
Drug 12 10 5 14 40
Total 22 17 20 28 78